Carbureter.



T.F.B0URNB;

GARBURBTER. APPLICATION FILED JUNE 19, 1912.

1,045,25 1. Patented Nov. 26, 1912.

MQW-me Y `THEononE E. BURNE; oEMoNTcLAIE, NEW JERSEY. l

' UCAEEURETER.;

To all wimmelt may cower'ruw Be it knownthat I, THEoDoRE F BouigNE, a citizen of the United States, and resident 4of Montclair, Essex count-y, New Jersey,

have invented; certain new and iisefuL-Im-- --provenients inl Carbureters,.of which the fol- 'lowing is a specification.

, carbureters particularly adap't-edf for inter- My invention' relates to iprovements in nal combustion engines, andvjhas special refereiice tocarbureters for usefon vehicles.

It is desirable tooperate internal combusl tion engines with the. least amount of fuel to produ e an effective mixture for the :work

being erformed, and to maintain such effective mixture as the. energy Vreqliired-.increases or decreases, whereby a inax'i'miunzetlicienc of operationjmay be obtained with aminimum fuel cost for-the lwork beingdone. Thev forqgoing is especially.y desirable for theoperation of vehicles -propelled byinternal combustion engines, toenable-a relatively correct mixture to be .used-when traveling on the level', and as afgrade is ascended or descended to so vary the quantity ofthe fuel as to maintain a relatively correctinixtiirc for the increasingJ or decreasing load'conditions on the engine caiTsed by the grade,

-thereby gaining an economy andV the advantage of engine efficiency according to the wardl y, and whereby also, when desired, the

supply of fuel maybe automatically reduced from the norinal'when the vehicle inclines downwardly. 4 Y

In the example'f my invention illustrated inithe accompanying'drawings, I provide a carbureter having any suitable orf well known air passage,carbureting ormixing chamber, one or-more fuel supply jets or nozzles communicat therewith, and a valve to control the'same, with meansA-jcoinprisiiig a pendant or gravity.`device,o eratively connected with said valve in suc manner-that thependant will, while the ,carbureter is speemcauon of Letters raient. application mea :une 19,1912. seriali Navo-1,522.

Patented ov.r.26l y1912.

substantially.horizontahfmaintain vthe valve i in its normal setposition torperniit .a normal supply of fuelto ow, but when. the carbureter is inclined with respect to the horizon-'-v tal, the pendant hanging vertically Aand by suitable means coacting therewith will cause theV valve to more or less'op'en or close the jet or nozzle .according toA the inclination and direction'of inclination of the carbureter as a Whole with respect to the pendant. My invention `also comprises novel details of. improvement and combinations of parts thatwillfbe more fully hereinafter-set.forthand .thenpointed out in the claims,

Reference is to be. had to the accompanyingudra-wings forming part hereof, wherein. Figure@ is aside View of a carbureter providedfwith' my improvements; Fig.- 2 is a vertical section substantially 'on the line 2, 2, in Fig. 1; Fig. 3 is a .detail side view looking from-the let'in Fig..1;'.Fig. 4 is a detail .section substantially on the line .4. 4, in Fig.

1: Figa is a detail perspective .of the needle valve and a portion of the pendant. or gravitv device: Fig. 6 is a detail sectional view illustrating modified means for causing automatic operation of the needle valve z, Fig. T is a central section of a portion ot'a carburetcr. illustrating a vmodification: Fig. 8 is a section on the line 8.8, in Fig. 7. and Fig. i) is a partly sectional detail view of a carburetor illustrating afm-ther modification.

Similar numerals of. reference indicate corresponding parts in the several views.

My improvements may be l.embodied in any suitable type of jetsupply carburetor. I have shown the carbureter provided uit-b ausual fuel supply chamber or bowl 1, having a. float 2 and valve In the example illust-rated in Figs. -1' to 8 the carinii-eter has a cent-ral'passage 4, providing a rarburetiug or mixing chamber` into which the )et or Fig. 9 the passage or earbuieiing or mixing chamber 4 is shown above. the lioat chamber and carried by the coverl.VVV ln 'Figs.'l and 2the passage 6 for the mixture is upon rover lnozzle projects fronicliarnber l, while' in and communicates with carbureting or mixing 4chamber Y At- 7 is a usual throttle or valve for con 1 bureting or mixing chamber may be provided with a valve 8 controlled by va spring with respect to thependant hanging from the valve'.

Figs. 'I and 8 I have shown valve 14 located within 4the chamber or passage 4, and a shaft l28 passing; through the wall of the carbureter, and carrying at its inner end within chamber 4 a crank or arm 29 pivotally connected, as atY 30, with valve 14, and connected at its-outerend with pend-l ant v16, outsideof chamber A1,'l whereby as thecarburetermoves with respect' to the may be adjusted by'"`iiieans of a screw 30n whichmay securely connect shaft 28 with.v

the pendant in adjusted position for regulatingthe position' of v alve'14 with respect tc' thel flowof fuel through jet or nozzle 5. 5 In Fig. 9 I have shown valvef14 as adapted to Arock with respect to jet ornozzle 5.- licr this purpose valve 14 may be carried'- upon a rock` arm 14c secured upon shaft 28' to -which pendant 16 is connected, as by 'screwsBO, inf manner before described -respecting Figs. 7.and1-8, whereby valve 14 may be set asrequired topermitthe normal desired llow. of fuel from-the jet, and as the carbureter tilts with respect to the vertical position of the pendant the'supply of fuel owing' from the ljet is automatically increased or decreased.

By means of my improvements, the valve 14 may be set in desired operative relation to the jet or the valve seat, and with respect to the vertical position of the pendant for production of the desired mixture for the work ofan engine under usual conditions, as when traveling substantially horizontally, and the movement imparted to valve 14 with respect to the jet by the relative movement of the carburetor body with respect to the vertically hanging pendant will automatically regulate the amount of additional fuel supply, or fuel decrease, permitted to be drawn from the jet according to the inclinationand ,degree of inclination that the carbureter assumes at any given time. 'l`herefore, no attent-ion is required on the part of the user to increase or kdecrease from the normal the supply offnelf'fiowing from the jet: lVlithf the carburetor.mounted lupon a vehicle and the same traveling n the level, the normal' or initial supply'o fuel permitted for'jtlie jet will be drawn by the engine as customary with carbureters equipped with jets and needl/e valves, but as soon as the vehicle asccndsyso that the carbureter inclines forwardly in an upward direction, the needle valve will be'causedto move outwardly o r away from the jet passage` or, scatto permit more fuel to be drawn, 'and such movement will be in proportion tothe inlnaton 0f the' carburete'r with. respectt0 the horizon'- tal. According to the pitch-or inclination of cam surfaces 18 and 16 or threads 14, 15* (aswell as the relative arrangementlofthe parts 29 or 14) the needle valveA will. be

,caused to vinove more or less quickly fOr a'given" inclination of the carbureter with respect tothe pendant 16. ',When the Vehll inclines from the -horizontal downwardly., 51S in descending a grade, the supply of fuel will be reduced proportionately by valve 1 4 closing toward seat 5. -Of course, if 1t- 1s not desired to reduce the supply of fuel from theT1 normal when the vehicle descendsa grade, the pendant may be caused-to infime with the carbureter, as by setting screw 27 against the. pendant whenthelatter is inthe vertical position; and, likewise, the degree of inclination'v of the carbureter independentlyl ofand with respect to the pendant may beregulated in either direction of 1nclination ofthe carbureter by setting screw 26 or 27 more or less near the pendant as desired. For instance, if it is desired tol limitthe swing ofthe carbureter independently of the pendant Within certain limits, as, for instance, not to permit the carbiireter to tilt vwith respect to the pendant more than equivf alent to theveliicle climbing or descending, say, a 20% grade, the movement of the carbureter with respect to the pendant may be limited to that extent, land so on in proportionsv desired.

It will be understood that in all cases,

after the carbureter has returned from an inclined position to the horizontal position, that the action of the pendant and thecam', threads, arm or the like that causeslautomatic action of the valve, will be to restore the latter to the normal or set position.

From the foregoing it will be apparent that the valve may be set to permit the engine to operate, as upon the level, with a relatively correctmixture, and the quantity ofthe fuel will be varie'dlautomatically to maintain a relatively correct mixture for the increasing or decreasing lad conditions on the engine, according to the* inclination of the carbureter, whereby eo'ssive continued use of more fuel than necessary when traveling on the level may be avoided, thus economizing fuel consumption'and cost, orin other words, the reqi'iired amount of fuelfor heavy work, such as hill climbing, may be instantly and automatically supplied, when the liillis reached, according to the -movements of the carbureteil with respect lto the valve and pendant.

By the term pendant as -herein used, I

mean a device or weight hanging or operatisc A ing adapted-` to'caus`..the valve that .controls-'the tlowfofiuel from the jet to madeT in' 'L the .details arrangements s'et forth, within the scope., 'of "'thcappendedv claims, withoutldepartiiig lfrom' 'the .spirit of' theinvention.. r' l 2o' `Hsrvingmotv"describedfmy .invention what I-claixil'iis-- 'v4 v ,l 1. A'carbureter'for internal' combustion et, land',i'neaneitof automatically operatethe first .named means ,toyvaryl'the 'flow .of fuel' 'fi-'olii'..said' jetaccordingfto/.the inclination of the carbureter with respecttothe horizontal: 3.', fcarburetei 'fori' internal." .combustion engines haying a fuel supply jet and 'a valve. the1-e foi-,'4 and z means to automatically' o p-l crate said' valve to" vary the tlow ofi-fuel I.from `said-jet. accordingl to the 'inclination of 4 0 'thefcarbureter with respect to the horizontal. Y "'4. A carburetorfor internalcombustion 'engines 'having 1a carburetingchamber,

. means to-supply fuel-thereto, means to control said supply, and gravityoper'ated means connected Awithsaid controllingn'ieans to .au-

tomatically v ary such fuel supplyaccording tothe inclination of soin'e ofthe parts with respectjto the horizontal. i Y

5. A. carbiirter -for i 'ternal 'combustion' 150 lengines having4 a oarbureting` chamber, a fuel supplyV jet communicating therewith,

' means 'to regulate the lowof fuel'from the.

jet', and a pendant operatively connected with said. means to vary the tlowoffuelac- M coi-ding' to the o'sition of lthe carbureter with respect to t e pendant.

\- 6. A carbureter for 4internal combustion engines'h'aving al carbnretng chamber,- a

' Afuel supply jet' communicating therewith, a

valveto, regulate the 'iow from said jet, a

vpendant connected with said valve, and

means to cause movementpf said valve upon tilting' of the carbureter with-respect to ,s aid 7 A` carburetor for internal combustionsaid means to' automatically' vary suchsupi plyaccordingto ',th'eA position of fthe car-l -bureter with respect to thefhori'zontal', and y mea-'ns Ato:limitrelative movement of the canbureter.- with ,respect to. the pendant bureten! 922A carbureter'` for :internal combustion:

SJAcarbureter for' internalrcohbustion ,I engines having'a fuelfsiipply-jet, avalize'4 Afor 'said jet, .disposed 'substantially 'transiirsely .engines having a'- fuel supply passage, a. car'- 'buieting chamber communicating therewith;

- and means-'carried by the'c'arburetei; to autoinatically increase and decrease-'the darea 'of sad'fuel-sup, .y passage accordimqj-to:the inclinationiofythe carhureter. .i

10. 4A- .carbUreter-for `internal" combustion .valve to morec'r-less'open said4 passage according .to'ltlieinclination of the carbureter.

carbureter for irit-'elfnl:combustionH engines having. af ca ibureting chamber, a' fuel iet communicating therewith, means to carrie'dvby the carbu'reter 'and operated by gravity,- and means to 'causes'aid member to automatically.' Operate said means according tothe inclination fof the parts.

L 12. A- carbureter 'for vinternal combustion engines having a carbureting chamber, a jet to supply fuel thereto, meansit'o control said jetpagravity member, and means to cause saidf member 4to operate said jet controlling means .to vary 'the HOW' from said jetl upon inclination of some of the'parts with respect to the horizontal.

13, A carbiiieter foiinterna-l combustionengines having va fuel jet, a valve to control Saidjet. a gravity member pivotalil)7 sup-- ported tooperate said'valve, and means eccentric to the'axis of said member to cause the latter to operate said valve. V'

14. A carhureter comprising a carbureting vchamber and a fuel chamber, means to' main# tain a constant fuelleifel in the fuel cham-l ber, means -to' admit lfuel 'from said fuel.

' the horizontal.

1 5. carbiireter for internal combustion engines having a carbureting chamber, a passage for-the suppl); of' fuel thereto, means to'. control'theiiow of fuel through the passage, and meansv associated withV the carbu-v retez` and said controlling means actuated by of New York and State of New York, this gravity to cause movement of the carbureter 18th day of June, A. D. 1912.

an; said'second named means with relation THEODORE F. BOURNE. to one another upon inclination of some of Witnesses:

5 the parts with respect to the horizontal. M Alun F. VVAINRIGHT,

Signed at. New York city, in the county RALPH H. RAPHAEL.

Copies et this patent may be obtained' for ve cents each, by addressing the Commissioner of Patents.

' Washington, D. C. Y 

